Search Results for author: Mononito Goswami

Found 12 papers, 5 papers with code

MOMENT: A Family of Open Time-series Foundation Models

no code implementations6 Feb 2024 Mononito Goswami, Konrad Szafer, Arjun Choudhry, Yifu Cai, Shuo Li, Artur Dubrawski

Pre-training large models on time-series data is challenging due to (1) the absence of a large and cohesive public time-series repository, and (2) diverse time-series characteristics which make multi-dataset training onerous.

Time Series Time Series Analysis

AQuA: A Benchmarking Tool for Label Quality Assessment

1 code implementation NeurIPS 2023 Mononito Goswami, Vedant Sanil, Arjun Choudhry, Arvind Srinivasan, Chalisa Udompanyawit, Artur Dubrawski

We hope that our proposed design space and benchmark enable practitioners to choose the right tools to improve their label quality and that our benchmark enables objective and rigorous evaluation of machine learning tools facing mislabeled data.

Benchmarking Label Error Detection +1

Unsupervised Model Selection for Time-series Anomaly Detection

1 code implementation3 Oct 2022 Mononito Goswami, Cristian Challu, Laurent Callot, Lenon Minorics, Andrey Kan

The practical problem of selecting the most accurate model for a given dataset without labels has received little attention in the literature.

Model Selection Supervised Anomaly Detection +2

Classifying Unstructured Clinical Notes via Automatic Weak Supervision

1 code implementation24 Jun 2022 Chufan Gao, Mononito Goswami, Jieshi Chen, Artur Dubrawski

Healthcare providers usually record detailed notes of the clinical care delivered to each patient for clinical, research, and billing purposes.

Text Classification

Weakly Supervised Classification of Vital Sign Alerts as Real or Artifact

no code implementations18 Jun 2022 Arnab Dey, Mononito Goswami, Joo Heung Yoon, Gilles Clermont, Michael Pinsky, Marilyn Hravnak, Artur Dubrawski

Our weakly supervised models perform competitively with traditional supervised techniques and require less involvement from domain experts, demonstrating their use as efficient and practical alternatives to supervised learning in HC applications of ML.

Weakly Supervised Classification

Counterfactual Phenotyping with Censored Time-to-Events

2 code implementations22 Feb 2022 Chirag Nagpal, Mononito Goswami, Keith Dufendach, Artur Dubrawski

Estimation of treatment efficacy of real-world clinical interventions involves working with continuous outcomes such as time-to-death, re-hospitalization, or a composite event that may be subject to censoring.

counterfactual Counterfactual Reasoning

Weak Supervision for Affordable Modeling of Electrocardiogram Data

no code implementations9 Jan 2022 Mononito Goswami, Benedikt Boecking, Artur Dubrawski

We explore the use of multiple weak supervision sources to learn diagnostic models of abnormal heartbeats via human designed heuristics, without using ground truth labels on individual data points.

Time Series Time Series Analysis

Learning Graph Neural Networks for Multivariate Time Series Anomaly Detection

1 code implementation15 Nov 2021 Saswati Ray, Sana Lakdawala, Mononito Goswami, Chufan Gao

In this work, we propose GLUE (Graph Deviation Network with Local Uncertainty Estimation), building on the recently proposed Graph Deviation Network (GDN).

Anomaly Detection Time Series +1

ACTIVE REFINEMENT OF WEAKLY SUPERVISED MODELS

no code implementations29 Sep 2021 Mononito Goswami, Chufan Gao, Benedikt Boecking, Saswati Ray, Artur Dubrawski

In domains such as clinical research, where data collection and its careful characterization is particularly expensive and tedious, this reliance on pointillisticaly labeled data is one of the biggest roadblocks to the adoption of modern data-hungry ML algorithms.

Active Learning

The Word is Mightier than the Label: Learning without Pointillistic Labels using Data Programming

no code implementations24 Aug 2021 Chufan Gao, Mononito Goswami

Most advanced supervised Machine Learning (ML) models rely on vast amounts of point-by-point labelled training examples.

Math text-classification +1

Towards Social & Engaging Peer Learning: Predicting Backchanneling and Disengagement in Children

no code implementations22 Jul 2020 Mononito Goswami, Minkush Manuja, Maitree Leekha

We also found that the dynamics of time series features are rich predictors of listener disengagement and backchanneling.

Pupil Dilation Time Series +2

Detecting Patterns of Physiological Response to Hemodynamic Stress via Unsupervised Deep Learning

no code implementations12 Nov 2019 Chufan Gao, Fabian Falck, Mononito Goswami, Anthony Wertz, Michael R. Pinsky, Artur Dubrawski

By analyzing the clusters of latent embeddings and visualizing them over time, we hypothesize that the clusters correspond to the physiological response patterns that match physicians' intuition.

BIG-bench Machine Learning Survival Prediction +2

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